Prime p₀= 2647720512099427487 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 2 18 36 16 32 82 56 24 36 22 36 24 56 82 32 16 36 18 2 (?)
a_n: 0 2 20 56 72 104 186 242 266 302 324 360 384 440 522 554 570 606 624 626
All 20 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 626
Found by: RFGuy_KCCO
db: batch=82, k=20, 2 18 36 16 32 82 56 24 36 22

SPT(16)	2647719133849226609	0 20 30 32 68 72 74 110 132 168 170 174 210 212 222 242	-1378250200878
STPT(10)	2647719847333653317	0 2 30 32 42 44 54 56 84 86	-664765774170
SPT(16)	2647719956982734563	0 34 54 66 94 156 178 184 210 216 238 300 328 340 360 394	-555116692924
STPT(10)	2647719973336347587	0 2 60 62 72 74 84 86 144 146	-538763079900
SPT(16)	2647720170797877649	0 22 34 88 144 148 162 190 192 220 234 238 294 348 360 382	-341301549838
TPT(14)	2647720449434324219	0 2 18 20 48 50 72 74 168 170 222 224 228 230	-62665103268
SPT(16)	2647720547023384739	0 18 20 60 74 104 110 114 254 258 264 294 308 348 350 368	34923957252
STPT(10)	2647720919977627997	0 2 24 26 42 44 60 62 84 86	407878200510
SPT(16)	2647721666623499083	0 16 36 46 60 88 106 114 190 198 216 244 258 268 288 304	1154524071596
SPT(16)	2647721780572010761	0 10 12 28 48 66 76 82 126 132 142 160 180 196 198 208	1268472583274
STPT(10)	2647722167652777779	0 2 12 14 90 92 168 170 180 182	1655553350292